Nyob rau hauv kev tshuaj xyuas lub koob yees duab specifications, koj yuav nquag pom lub sij hawm "thav duab tus nqi." Nws tau nthuav tawm raws li tus naj npawb ntawm cov thav duab ntes ib ob (fps, rau thav ntawv ib ob).
Ib lub thav duab yog qhov tseem ceeb ntawm daim duab. Ua kom txaus ntawm lawv nyob rau hauv kev ua tiav sai, thiab koj muaj cov yeeb yaj kiab puv. Ncej tus nqi, ces, hais txog pes tsawg tus ncej ib lub camcorder yuav ntes nyob rau hauv ib tug thib ob, uas txiav txim siab npaum li cas tus yees duab yuav zoo.
Xaiv tus ncej tus nqi
Feem ntau, camcorders kaw ntawm 30 fps kom muab cov tsos ntawm seamless txav. Cov duab yeeb yaj kiab raug kaw ntawm 24 fps, thiab qee cov qauv camcorder muaj 24p hom los ua cov yeeb yaj kiab zoo nkauj. Kev kaw cia ntawm tus ncej qeeb dua 24 fps ua rau cov yeeb yaj kiab uas zoo li jerky thiab disjointed.
Ntau lub camcorders muaj peev xwm tua ntawm tus ncej nrawm dua li 30 fps, feem ntau 60 fps. Qhov no muaj txiaj ntsig zoo rau kev ntes cov kis las lossis txhua yam uas muaj kev txav nrawm.
Slow-Motion Recording
Yog tias koj ua kom tus ncej tus nqi mus, hais, 120 fps lossis siab dua, koj tuaj yeem kaw cov vis dis aus qeeb. Qhov ntawd yuav ua rau lub suab tsis zoo thaum xub thawj: Vim li cas tus ncej nrawm yuav ua rau koj qeeb qeeb?
Ntawm tus nqi siab dua, koj tab tom ntes cov ntsiab lus ntxiv ntawm kev txav mus los hauv txhua qhov thib ob. Ntawm 120 fps, koj muaj plaub npaug ntawm cov ntaub ntawv video dua li koj ua ntawm 30 fps.
Nws yog qhov ntau dua ntawm qhov tseem txhaj tshuaj uas tso cai rau lub camcorder kom qeeb cov playback ntawm cov yees duab thiab xa cov duab qeeb hauv koj cov video editor.
Shutter Speed
Yog tias koj tau hnov txog lo lus "thav duab tus nqi," tej zaum koj kuj tau hnov txog qhov ceev ceev. Ob lub ntsiab lus no muaj feem cuam tshuam tab sis tsis zoo ib yam.
Frame rate yog hais txog tus lej ntawm cov duab uas tau ntes txhua ob - thiab yog li ntawd, qhov smoothness ntawm video. Lub shutter ceev, ntawm qhov tod tes, hais txog ntev npaum li cas lub koob yees duab kaw tau qhib thaum thaij duab; qhov no txhais tau hais tias lub teeb uas lub teeb pom kev tuaj yeem siv los sau cov duab.
Thaum tus ncej tus nqi qis heev, cov yeeb yaj kiab yuav zoo li khaus vim tsis muaj cov duab txaus. Yog tias lub shutter tsis qhib ntev txaus (piv txwv li, lub shutter ceev yog luv dhau), daim duab yuav tsis tau txais lub teeb txaus thiab yuav underexposed.
Nws yog ib qho uas qhov kev kaw nrawm yuav ua ob npaug ntawm fps rau kev kaw. Piv txwv li, yog tias koj lub camcorder tau teeb tsa rau ntawm 30 fps, lub shutter ceev yuav tsum yog 1/60th ntawm ib thib ob. Qhov no txhais tau tias txhua tus ncej (30 rau txhua thib ob) raug nthuav tawm rau 1/60th ntawm ib thib ob.
